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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <!-- <h1>hello vue</h1> -->
    <script>
        var h1 = document.createElement('h1');//创建是一个真实的dom 
        h1.innerHTML = 'hello vue';
        console.dir(h1);
        document.body.append(h1)
    </script>
</body>

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